According to data from HM Land Registry, 78, Pentwyn Avenue, Mountain Ash sits on a plot of 115 m².

We have plot size data on 41 out of 45 other houses in the postcode and 78, Pentwyn Avenue, Mountain Ash sits on the 38th largest plot.

78, Pentwyn Avenue, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 02 Nov 2018.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

According to the Land Registry and our network of Estate Agents, there have been 47 sales of properties similar to 78, Pentwyn Avenue, Mountain Ash within a radius of 1.3 kilometres since 2015.

The most recent example is 74, Church Street, Mountain Ash, CF45 3YB, a freehold house which sold for £72,000 on the 30th April 2026.

Read more about house prices in CF45.

• Sold Apr 2026£72,000 | 3 Bed House74, Church Street, Mountain Ash, CF45 3YB74, Church Street, Mountain Ash, CF45 3YB
• Sold Nov 2025£130,000 | 3 Bed House22, Station Terrace, Mountain Ash, CF45 3SS22, Station Terrace, Mountain Ash, CF45 3SS
• Sold Nov 2025£80,000 | 3 Bed House14, Monmouth Street, Mountain Ash, CF45 3NJ14, Monmouth Street, Mountain Ash, CF45 3NJ
• Sold Oct 2025£115,000 | 3 Bed House30, Glanlay Street, Mountain Ash, CF45 3TL30, Glanlay Street, Mountain Ash, CF45 3TL
• Sold Mar 2025£90,000 | 3 Bed House59, Morris Avenue, Mountain Ash, CF45 3TW59, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Mar 2025£102,000 | 3 Bed House62, Church Street, Mountain Ash, CF45 3YB62, Church Street, Mountain Ash, CF45 3YB
• Sold Nov 2024£65,000 | 3 Bed House6, Main Road, Mountain Ash, CF45 4YH6, Main Road, Mountain Ash, CF45 4YH
• Sold Sep 2024£99,000 | 3 Bed House65, Morris Avenue, Mountain Ash, CF45 3TW65, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Aug 2024£123,000 | 3 Bed House17, Milbourne Street, Mountain Ash, CF45 4YL17, Milbourne Street, Mountain Ash, CF45 4YL
• Sold May 2024£62,500 | 3 Bed House7, Main Road, Mountain Ash, CF45 4YH7, Main Road, Mountain Ash, CF45 4YH
• Sold May 2024£90,000 | 3 Bed House59, Church Street, Mountain Ash, CF45 3YB59, Church Street, Mountain Ash, CF45 3YB
• Sold Nov 2023£53,000 | 3 Bed House36, Church Street, Mountain Ash, CF45 3YB36, Church Street, Mountain Ash, CF45 3YB
• Sold Aug 2022£90,000 | 3 Bed House17, Monmouth Street, Mountain Ash, CF45 3NJ17, Monmouth Street, Mountain Ash, CF45 3NJ
• Sold Aug 2022£102,500 | 3 Bed House14A, Rheola Street, Mountain Ash, CF45 3TA14A, Rheola Street, Mountain Ash, CF45 3TA
• Sold Feb 2021£39,000 | 3 Bed House21, Glanlay Street, Mountain Ash, CF45 3TL21, Glanlay Street, Mountain Ash, CF45 3TL
• Sold Jan 2021£67,000 | 3 Bed House70, Glanlay Street, Mountain Ash, CF45 3TN70, Glanlay Street, Mountain Ash, CF45 3TN
• Sold Feb 2020£80,000 | 3 Bed House37, Morris Avenue, Mountain Ash, CF45 3TW37, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Mar 2018£38,000 | 3 Bed House35, Glanlay Street, Mountain Ash, CF45 3TL35, Glanlay Street, Mountain Ash, CF45 3TL
• Sold Feb 2016£30,000 | 3 Bed House6, Glanlay Street, Mountain Ash, CF45 3TL6, Glanlay Street, Mountain Ash, CF45 3TL
• Sold Jan 2015£23,000 | 3 Bed House54, Pentwyn Avenue, Mountain Ash, CF45 4YF54, Pentwyn Avenue, Mountain Ash, CF45 4YF

Pentwyn Avenue, Mountain Ash, CF45 has a total of 111 addresses. According to our analysis of all the public data, 78, Pentwyn Avenue, Mountain Ash is the 110th largest and the 46th most expensive property on the street.

When compared to the postcode district it is £53k less expensive than the average property in CF45.

• Penrhiwceiber

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  1.0 km away
• Quakers Yard

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  2.2 km away
• Mountain Ash

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  2.7 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.